Quiz # 1 review systems.notebook
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Quiz Review!
February 29, 2016
intersecting lines systems of Linear Equation slope check lines graphed on top of each other
solution y­intercept parallel lines An ordered pair that satisfies the system of equations
solution A system of linear equations that have ONE solution intersecting lines Substituting the solution in a system to prove that it is correct check
A system of linear equations that have NO solution
parallel lines Rise over run
slope
Consists of two or more linear equations in the same two variables
systems of Linear Equation A system of equations that have INFINITE Solutions and have the same
slope and the same y­intercept
lines graphed on top of each other
The location where a line touches the y axis y­intercept
Without graphing, tell if the following system of equations has one solution, no solution or infinite solutions. State WHY!
a) y = ­6x – 8
b) y = 2x – 3
c) y = 3x + 1
y = ­6x + 1 3y = 6x ­ 9 y = 6x + 7
State if the ordered pair (3, 10) is a solution of the system. Write YES or NO! x – y = ­7
y = 3x + 2
Quiz # 1 review systems.notebook
February 29, 2016
4
+
­x
= y Solve the system graphically. State the slope and y­intercept.
y = 5x ­ 2
m=
b=
y = 5
x ­ 2
y = ­x + 4 m=
b=
Now solve the SAME system using SUBSTITUTION. Then do a check for the solution.
y = 5x ­ 2
y = ­x + 4 Solve the following using substitution. CLEARLY show all work.
x = ­2y + 11
y ­ 2 = 3x